
1/03 UDC 6300 Process Controller Product Manual 169
5.10 Using Two Set of Tuning Constants
Introduction
You can use two set of tuning constants for single output types and 2
Loop or Cascade control and choose the way they are to be switched.
(Does not apply for Duplex Control).
The sets can be:
• Keyboard selected
• Automatically switched when a predetermined Process Variable
value is reached.
• Automatically switched when a predetermined Setpoint value is
reached.
The following procedures show you how to:
• Select two sets or Gain Scheduling
• Set the switch-over value
• Set tuning constant value for each set
• Switch between two sets via the keyboard (without automatic
switch-over)
Select two sets or
gain scheduling
The procedure in Table 5-19 tells you how to select two sets or gain
scheduling.
Table 5-19 Procedure for Selecting Two Set of Tuning Constants
Step Operation Press Action
1
Select Control
Set Up group
SET
UP
Until you see: For Loop 2
CONTROL
Lower Display
SET UP
Upper Display
or
CONTROL2
Lower Display
SET UP
Upper Display
2
Select
PID SETS
function
FUNC
L1/L2
Until you see:
Lower Display
Upper Display
PIDSETS
Available selections
are listed below
1 ONLY - 1 set of constants
2 KEYBD - 2 sets, keyboard selectable
2 PVSW - 2 sets, auto switch at PV value
2 SPSW - 2 sets, auto switch at SP value
GAIN SCDL - Gain used in control
algorithm calculations can be pre-entered
into eight user-defined segments, with
each segment applied over a user-
defined PV range. Refer to Section 3 -
Configuration under Set UP prompt
“TUNING” to set Gain segment values
and PV range values.
or
to select the type of PID SET.
Continued on next page
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